Research Progress of Wavelet Analysis in Flow Structure Characterization

Abstract:

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The wavelet analysis is a time-frequency analysis method, which plays an important role in processing non-stationary signals obtained by Particle Image Velocimetry (PIV) to measure turbulent flow fields. Current research status for wavelet analysis in the flow field structure was reviewed: eduction of coherent structures and multi-scale structures(the large-, intermediate- and relatively small-scale structures)by wavelet transform and combine with the maximum energy criterion, extraction of coherent vortical structures and analysis of multi-scale turbulent structures information from the time–frequency diagram. Application of wavelet analysis in the flow structures was also prospected.

Info:

Periodical:

Advanced Materials Research (Volumes 291-294)

Edited by:

Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu

Pages:

2787-2793

DOI:

10.4028/www.scientific.net/AMR.291-294.2787

Citation:

Z. H. Liu et al., "Research Progress of Wavelet Analysis in Flow Structure Characterization", Advanced Materials Research, Vols. 291-294, pp. 2787-2793, 2011

Online since:

July 2011

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Price:

$35.00

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